Remove additional dead jenkins related code

We don't need a clean workspaces playbook, nor do we need to do anything
with that during renames. We don't need to reference machines that don't
exist in ansible groups. The launcher ssh config is not used by
anything.

Change-Id: Id3e9cddb06b6e47b6f07d9a39086f3b054b46bde

modules/openstack_project/files/puppetmaster/groups.txt

@@ -1,5 +1,5 @@
 afs afs*.*.openstack.org
-afsadmin mirror-update.openstack.org:release.slave.openstack.org
+afsadmin mirror-update.openstack.org
 afsdb afsdb*.openstack.org
 cacti ~cacti\d+\.openstack\.org
 ci-backup backup\d+.*\ci\.openstack\.org

modules/openstack_project/files/zuul/launcher_ssh_config

@@ -1,12 +0,0 @@
-HashKnownHosts No
-Host *.openstack.org
-  StrictHostKeyChecking No
-  UserKnownHostsFile ~/.ssh/known_hosts
-
-# NOTE(notmorgan): It is assumed that slaves are logged into
-# not via a hostname ending in ".openstack.org" such
-# as by IP address. This prevents storing the host keys of
-# these slave hosts
-Host * !*.openstack.org
-  StrictHostKeyChecking No
-  UserKnownHostsFile /dev/null

playbooks/clean_workspaces.yaml

@@ -1,4 +0,0 @@
----
-- hosts: '*.slave.openstack.org'
-  tasks:
-    - shell: 'rm -rf ~jenkins/workspace/*{{ project }}*'

playbooks/rename_repos.yaml

@@ -52,10 +52,3 @@
     with_items: "{{ gerrit_groups|default([]) }}"
 # TODO: online reindex accounts
 # TODO: online reindex projects
-- hosts: '*.ci.openstack.org:*.slave.openstack.org'
-  remote_user: root
-  gather_facts: False
-  tasks:
-  - include_vars: "{{ repolist }}"
-  - shell: 'rm -rf ~jenkins/workspace/*{{ item.old | basename }}*'
-    with_items: "{{ repos }}"